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[PATCH V2] ath5k: add missing iounmap to AHB probe removal

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When our driver device is removed on the AHB bus, our IO memory is never unmapped.

Signed-off-by: Jonathan Bither <jonbither@xxxxxxxxx>

diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c
index 8c50d9d..aec33cc 100644
--- a/drivers/net/wireless/ath/ath5k/ahb.c
+++ b/drivers/net/wireless/ath/ath5k/ahb.c
@@ -220,6 +220,7 @@ static int ath_ahb_remove(struct platform_device *pdev)
 	}
 
 	ath5k_deinit_ah(ah);
+	iounmap(ah->iobase);
 	platform_set_drvdata(pdev, NULL);
 	ieee80211_free_hw(hw);
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